CREST Science Olympiad Class 9 Previous Year Paper

Preparing for the Class 9 Science Olympiad can feel challenging, but using previous year question papers makes a big difference. These papers give students a solid understanding of how questions are framed and what topics to focus on, making revision more targeted.

How These Papers Help

  • They cover crucial topics such as Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound etc.
  • They improve time management, analytical thinking, and help students handle tricky questions more confidently.
  • Answer keys are included to help students review and strengthen weak areas.

Download the Science Olympiad Previous Year Paper for Class 9 (PDF) to support focused revision and help your child step into the exam feeling well-prepared and motivated.

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Syllabus:

Section 1: Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound, Matter in Our Surroundings, Is Matter Around Us Pure, Atoms and Molecules, Structure of Atom, Cell - The Fundamental Unit of Life, Tissues, Diversity in Living Organisms, Why Do We Fall Ill, Natural Resources, Improvement in Food Resources.

Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1

Previous Year Questions

Q.1 Q.2 Q.3 Q.4 Q.5 Q.6 Q.7 Q.8 Q.9 Q.10

Q.1

Which of the following maintains the organic matter of the soil?

Q.2

A gold manufacturing company manufactures gold coins with absolutely pure gold. If the mass of each gold coin is 9.85 g and 1000 gold coins are manufactured per day, calculate the number of moles of gold consumed per day. (At. wt. of gold is 197 amu)

Q.3

In which of the following pairs of the ions/atoms are isoelectronic with each other?

I. Na+ and Ne
II. Na+ and K+
III. K+ and Cl-

Q.4

Choose the correct option and complete the following sentence:

Rohan lives in an overcrowded and poorly ventilated house, it is possible that he may suffer from the _________________ diseases.

Q.5

A solid piece of lead experiences certain upthrust. What happens to the upthrust acting on the lead piece when it is shaped into a hollow cube and placed in the same liquid?

Q.6

Read the following statements and choose the correct option:

Statement 1: The presence of circulatory system is not the characteristic feature of protochordata.

Statement 2: Rhizopus is the common 'black bread mould' fungus.

Q.7

The presence of ozone in the atmosphere of earth _____________.

  1. is advantageous since it supplies O2 for people travelling in jets
  2. helps in checking the penetration of ultraviolet rays to earth
  3. hinders higher rate of photosynthesis
  4. has been responsible for increasing the average global temperature in recent years

Q.8

Kevin carries a bag weighing 6 kg from the ground floor to his house on the first floor that is 10 m high. Calculate the work done by Kevin: (g = 9.8 m/s2)

Q.9

An element X has two isotopes which may be represented as 238X and 235X. How does 238differ from 235X?

Q.10

In the following question, an assertion and reason are given. Choose the correct option:

Assertion: Intercropping checks the population of insects.

Reason: Plant pests can be controlled biologically by their natural parasites and pathogens.

Your Score: 0/10

Answers to Previous Year Questions from CREST Olympiads:

Q.1cQ.2bQ.3bQ.4cQ.5aQ.6bQ.7bQ.8cQ.9dQ.10b

Additional Preparation Resources

Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 9 -

  1. CREST Science Worksheets Package for class 9 - It is a package of 5 worksheets. The worksheets are in the same pattern as the previous year paper. Hence, very useful for preparation. Existing users can purchase additional practice worksheets by following these steps: Login at https://www.crestolympiads.com/login -> Dashboard -> Additional Practice -> Buy & new users can visit https://www.crestolympiads.com/registration
  2. CREST Science Olympiad book for class 9 - The book covers topic-wise reading material, chapter-wise practice questions with answer key & contains the previous year paper. The book is available in both physical and pdf formats. Proceed now to purchase the Olympiad book. Also, students can view & download the first chapter of the Science Olympiad book for class 9 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 9.

Answers to Previous Year Questions from CREST Olympiads:

Q.1 : c | Q.2 : b | Q.3 : b | Q.4 : c | Q.5 : a | Q.6 : b | Q.7 : b | Q.8 : c | Q.9 : d | Q.10 : b

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